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Search Results: 1 - 10 of 234298 matches for " 刘瑞涵 "
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蔬菜零售商经营行为研究综述
Literature Review of the Research on the Conduct of Vegetable Retailers
 [PDF]

曹萌,
Modern Marketing (MOM) , 2014, DOI: 10.12677/MOM.2014.41003
Abstract: 蔬菜是居民日常生活的重要组成部分,同时也与生产经营者的收入息息相关。蔬菜营销渠道是否畅通直接影响到蔬菜产业的发展和渠道各成员的经济利益。作为蔬菜营销渠道中的重要环节,蔬菜零售商对稳定蔬菜价格、促进蔬菜产业链健康运转发挥着重要作用。本文从经营环境、零售商与批发商、消费者间的博弈关系等几个方面对蔬菜零售商的经营行为的研究进行归纳分析,总结评述国内外学者对影响零售商经营行为的各个因素的相关研究,并针对研究中发现的问题提出相应改进的建议与对策,以期对蔬菜零售商经营行为的进一步研究提供参考
Vegetables are an important part of the daily life of residents, which are closely linked with the income of production managers. The efficiency of the operations of vegetable marketing channels directly affects the development of vegetable industry and the economic interests of channel members. As an important link in the marketing channel of vegetables, vegetable retailers play an important role in stabilizing prices of vegetables and promoting the healthy operation of vegetable industry chain. This paper summarized and analyzed the researches on the management behavior of vegetable retailers from the perspectives of the operating environment, the game relationship between retailers, wholesalers and consumers. The paper summarized and commented on the domestic and foreign scholars’ studies on the various factors which affect the behaviors of retailers. And some suggestions and countermeasures to improve the issues were put forward in order to provide the reference for further study on vegetable retailers’ operating behaviors.
北京农户叶类蔬菜营销渠道绩效评价
Evaluation of Leafy Vegetables Marketing Channel Efficiency Based on Beijing Farmers
 [PDF]

, 王艳宇, 卢瑞雪, 何忠伟
Modern Marketing (MOM) , 2014, DOI: 10.12677/MOM.2014.44010
Abstract:
评价北京农户的叶类蔬菜渠道绩效时,首先建立相应评价指标体系;其次通过层次分析法建立多阶层次分析模型并计算影响绩效的各因素指标权重,同时基于三角白化权函数的灰色评估方法,评估渠道各层次指标,得到相应渠道绩效的等级和综合评价值。定量评价结论是:“农户 + 企业或合作社”模式的渠道绩效最高,其次是“农户 + 产地集贸市场”和“农户 + 产地收购商”。“农户 + 批发市场”模式的渠道绩效最低,不适于农户进行叶类蔬菜的销售。
Marketing channel efficiency of leafy vegetables was evaluated in this study. The impact factors of leafy vegetable marketing channel efficiency were identified, and then its corresponding evaluation index system was constructed. An evaluation model for multi-hierarchy process based on AHP was established, and the index weights of various factors were calculated. Meanwhile, on the basis of grey evaluation method of triangular whitening weight function, the indexes of various hierarchies in different channels were evaluated and the level and comprehensive evaluation value of performance of marketing channels efficiency were got. The quantitative evaluation results showed that the mode of “Farmers + enterprise (cooperatives)” achieved the highest channel efficiency and the mode of “Farmers + Wholesale” achieved the lowest channel efficiency. The mode of “Farmers + Wholesale” is unsuitable for farmers selling leafy vegetables.
分布式光伏扶贫的模式比较与政策建议
Comparisons of Models on Distributed Photovoltaic Poverty Alleviation and Advice on Policy
 [PDF]


Sustainable Development (SD) , 2016, DOI: 10.12677/SD.2016.63020
Abstract:
本文就国家现有的光伏扶贫模式进行了比较分析,详细阐述了各方主体所关心的问题。为了使扶贫更加精准,项目更加具有可持续性和利益共生性,笔者提出了一种新的扶贫模式,即“1 + 2 + 4”,以基金为一个中心,全面、详细阐述了基金的“来龙去脉”;以增加农民受益,扩大电力需求为两个基本原则;就近发电、就近并网、就近转换、就近使用为四个基本点。最终,确保政府的扶贫目标得以实现,农民的收入得到保证,企业的投资得以有效地收回,银行的担保得以相对地降低风险,整个农网线路的改造得以完成,弃光现象得以缓解,让扶贫之路的前景充满了一片光明。
The present models of poverty alleviation in China have been compared and analyzed in the article. Also, the questions that all parties concern have been elaborated. To take targeted measures in poverty alleviation, to make the program sustainable and multi-beneficiary, I come up with a new model based on the present patterns project the “1 + 2 + 4”. “1”means that the central point of poverty alleviation project is establishing a fund, whose ins and outs are illustrated thoroughly and carefully. “2” means that the two principles are to raise peasant’s income and to expand electricity demand. “4” means that the four basic points are to generate electric power nearby, to interconnect electricity nearby, to convert electricity nearby, to use electricity nearby. When all the things talked above can be taken account seriously, the governmental goal of poverty alleviation, the long-lasting income of famers, the paid-off investment of enterprise, the lower risk of bank’s guarantee and the rural electric network alteration are only matters of time.
亲缘利他的不对称性:进化视角的分析
,,张孝义
心理科学进展 , 2012,
Abstract: 内含适应性理论是进化生物学和进化心理学中最重要的理论之一。该理论假设, 个体的亲属是其适应性的载体, 但亲属们的价值有所不同。大量研究发现, 亲属的利他行为表现出不对称性, 即遗传相关系数相同的亲属表现出不同的利他倾向。如祖父母对孙辈的投资中, 外祖母往往投入最多, 外祖父和祖母次之, 祖父投入最少。研究者用内含适应性理论来解释这种亲缘利他差异, 进而提出了“父亲身份不确定性”等具体的进化假设。未来研究中, 国内研究者应在正确理解内含适应性理论的基础上, 更多关注亲缘利他的不对称性, 采用多种数据采集方法和统一的评定指标。
亲缘利他的不对称性:进化视角的分析
,,张孝义
心理科学进展 , 2012,
Abstract: ?内含适应性理论是进化生物学和进化心理学中最重要的理论之一。该理论假设,个体的亲属是其适应性的载体,但亲属们的价值有所不同。大量研究发现,亲属的利他行为表现出不对称性,即遗传相关系数相同的亲属表现出不同的利他倾向。如祖父母对孙辈的投资中,外祖母往往投入最多,外祖父和祖母次之,祖父投入最少。研究者用内含适应性理论来解释这种亲缘利他差异,进而提出了“父亲身份不确定性”等具体的进化假设。未来研究中,国内研究者应在正确理解内含适应性理论的基础上,更多关注亲缘利他的不对称性,采用多种数据采集方法和统一的评定指标。
年龄与风险决策中框架效应间关系及其机制探析
Age-Related Influence for Framing Effect in the Risky Decision-Making Tasks
 [PDF]


Advances in Psychology (AP) , 2013, DOI: 10.12677/AP.2013.35037
Abstract: 风险决策中的框架效应是决策研究的重要部分,不同年龄段的框架效应可能有显著差异。目前年龄与风险决策中框架效应关系的实证研究主要有三类观点:一是年龄与框架效应无关,二是框架效应随年龄增长而增大,三是随年龄增长,个体决策表现出从双向框架效应向单向框架效应的转变。本文从神经基础、认知加工风格以及信息加工双通路说及其对前景理论的修正等三个视角解读了年龄与框架效应之间的复杂关系,并认为,随年龄增长,个体加工情绪情感类(尤其是积极情绪情感类)信息能力的增强可能是导致框架效应随年龄变化的重要原因。
Studies of framing effect in risky decision-making played an important role in rational deci- sion-making. There might be significant age-related changes of framing effects. Previous studies mainly had three findings: first of all, participants with different ages showed little differences in framing effect; Next, framing effect became larger with the increasing age; Finally, participants’ decision shifted from bidirectional to unidirectional framing effect with age increased. We reviewed the complicated relationships between framing effect and age, under the construct of neural correlates, cognitive processing style, dual information processes and the modified prospect theory; Moreover, we supposed that the increasing advantage of proc- essing emotional information, especially positive emotion might be the key reason of age-related changes in framing effect.
大黄素抗胆囊癌作用的研究进展
,,董顺斌,袁伟,柳言平,
中国中药杂志 , 2014,
Abstract: 大黄素是一种从中草药中提取的有效活性成分,具有抗微生物、抗炎、抗氧化及清除氧自由基、抑制血小板聚集、改善微循环、保护多种器官组织以及广泛的抗肿瘤作用。原发性胆囊癌是胆道系统常见的恶性肿瘤,手术根治性切除率低,缺乏有效的辅助治疗措施。大黄素的广谱抗肿瘤效应已经得到证实,其在胆囊癌的治疗上是否具有确切疗效尚无可靠的临床试验,其抗胆囊癌作用有待进一步实验考证。该文就大黄素抗胆囊癌作用的相关研究进展做一综述。
镉离子对文蛤肝胰腺超微结构的影响
建博,夏利平,,陈思,应雪萍
动物学杂志 , 2014, DOI: 10.13859/j.cjz.201405012
Abstract: 本文以文蛤(Meretrixmeretrix)为实验对象,将其在不同浓度镉溶液(0、1.5mg/L、3mg/L、6mg/L)中染毒5d,并利用透射电镜技术分析文蛤肝胰腺细胞的超微结构变化。结果表明:镉对文蛤肝胰腺细胞超微结构的影响较大,主要表现在对内膜系统和线粒体的破坏上,其中线粒体嵴减少,肿胀变形,逐渐空泡化;粗面内质网由原先的板层状结构解体,形成许多大小不同的小泡。微绒毛脱落并逐渐减少,部分空泡化,高尔基体膜也有扩张的现象。膜性结构形成的空泡中出现沉积物,核膜出现内陷。镉离子破坏了文蛤肝胰腺细胞膜和主要细胞器的结构,影响了肝胰腺细胞的正常生理机能,随着镉溶液浓度的升高,对肝胰腺细胞结构的破坏性也增强。
心理距离情境对农户农资购买决策中初始信任的影响——信息处理模式的中介机制
The Influence of Psychological Distance Situations on Farmers’ Initial Trust in Purchasing Decision on Agricultural Materials: The Mediation Effect of Information Processing Mode

李婷婷,李艳军,
LI Tingting
,LI Yanjun,LIU Ruihan

- , 2016,
Abstract: 摘要 从社会距离和空间距离交互形成的心理距离情境视角出发,运用案例研究和定量研究相结合的实证方法,归纳了不同心理距离情境下农户选择农资零售店时的初始信任客体,揭示了心理距离情境和农户初始信任之间的中介机制。研究表明:在社会距离远、空间距离远的心理距离情境1下,农户的初始信任是基于经济理性的产品品牌信任,认知系统信息处理模式在心理距离情境和农户初始产品品牌信任之间发挥中介作用;在社会距离近、空间距离近的心理距离情境3下,农户的初始信任是基于人情的零售商信任,情感系统信息处理模式在心理距离情境和农户初始零售商信任之间发挥中介作用;在社会距离远、空间距离近的心理距离情境4下,农户的初始信任是基于近地理位置属性的零售店信任,直觉系统信息处理模式在心理距离情境和农户初始零售店信任之间发挥中介作用
优化的协同过滤推荐算法
Optimized Cooperative Filtering Algorithm
 [PDF]

, 孟繁成,
Computer Science and Application (CSA) , 2011, DOI: 10.12677/csa.2011.13022
Abstract: 基于最近邻的协同过滤算法是个性化推荐中应用的最为成功的算法,然而在普通网络中,用户身份兴趣等信息缺乏可靠性,导致该算法推荐不够精确。社会网络是彼此拥有足够的感情后建立起来的一种人际关系网络,它的出现为广大用户提供了一个相对安全的绿色交流通道。本文针对社会网络中个性化推荐系统存在的问题,提出了一种在社会网络下基于信任度的最近邻居集合算法的优化,该算法通过分析社会网络中用户的信任度给出个性化推荐。实验表明,该算法在社会网络中的应用提高了个性化推荐的准确度,增加了用户的满意程度。
Cooperative Filtering algorithm is one of the most successful technologies in the application of personalized recommendation system. However, the users’ identities and interests are very complicated in the normal network, which results in the inaccuracy of the recommendation. However, the appearance of social network provides users with a relatively green and safe communication platform. This paper in terms of the problems in the personalized recommendation system of social network comes up with the trust-based nearest neighbor algorithm which optimizes the traditional NN algorithm and provides recommendation by analyzing trust between the social network users. The experimental results show that the modified algorithm greatly improves the recommendation accuracy and raises the users’ degree of satisfaction.
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